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Chu W, Li R, Liu J, Reimherr M. FEATURE SELECTION FOR GENERALIZED VARYING COEFFICIENT MIXED-EFFECT MODELS WITH APPLICATION TO OBESITY GWAS. Ann Appl Stat 2020; 14:276-298. [PMID: 32802245 PMCID: PMC7426018 DOI: 10.1214/19-aoas1310] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2023]
Abstract
Motivated by an empirical analysis of data from a genome-wide association study on obesity, measured by the body mass index (BMI), we propose a two-step gene-detection procedure for generalized varying coefficient mixed-effects models with ultrahigh dimensional covariates. The proposed procedure selects significant single nucleotide polymorphisms (SNPs) impacting the mean BMI trend, some of which have already been biologically proven to be "fat genes." The method also discovers SNPs that significantly influence the age-dependent variability of BMI. The proposed procedure takes into account individual variations of genetic effects and can also be directly applied to longitudinal data with continuous, binary or count responses. We employ Monte Carlo simulation studies to assess the performance of the proposed method and further carry out causal inference for the selected SNPs.
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Affiliation(s)
| | - Runze Li
- Department of Statistics and the Methodology Center, Pennsylvania State University
| | - Jingyuan Liu
- MOE Key Laboratory of Econometrics, Department of Statistics, School of Economics, Wang Yanan Institute for Studies in Economics, and Fujian Key Lab of Statistics, Xiamen University
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Zhang D, Liu L, Huang X, Tian J. Insights Into Coronary Artery Lesions in Kawasaki Disease. Front Pediatr 2020; 8:493. [PMID: 32984207 PMCID: PMC7477115 DOI: 10.3389/fped.2020.00493] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 07/14/2020] [Indexed: 12/14/2022] Open
Abstract
This review summarizes recent advances in understanding the development of coronary arteritis in Kawasaki disease. Kawasaki disease is the most common cause of acquired heart disease among children characterized with coronary artery abnormalities, which can cause myocardial ischemia, infarction, and even death. The pathogenic factors of Kawasaki disease and the pathological process of coronary artery disease are not clear at present, which brings challenges to the prevention and treatment of the disease. The treatment of Kawasaki disease focuses mainly on timely administration of intravenous high doses of immunoglobulin and aspirin. However, there are still some patients who do not respond well to this standard treatment, and its management remains a challenge. As a result, coronary artery lesions still occur in patients and affect their quality of life. In this review, we discuss updated research data of Kawasaki disease coronary artery lesions.
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Affiliation(s)
- Danfeng Zhang
- Ministry of Education Key Laboratory of Child Development and Disorders, Department of Cardiology, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Lingjuan Liu
- Ministry of Education Key Laboratory of Child Development and Disorders, Department of Cardiology, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Xupei Huang
- Department of Biomedical Science, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, United States
| | - Jie Tian
- Ministry of Education Key Laboratory of Child Development and Disorders, Department of Cardiology, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
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Positive association between MIC gene polymorphism and tuberculosis in Chinese population. Immunol Lett 2019; 213:62-69. [PMID: 31400356 DOI: 10.1016/j.imlet.2019.07.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 07/29/2019] [Accepted: 07/30/2019] [Indexed: 11/23/2022]
Abstract
The disease progression and morbidity of tuberculosis (TB) infections are determined by virulence of the micro-organism, host genetic factors and environmental factors. The highly polymorphic MHC class I chain-related gene (MIC) could serve as a potential host genetic candidate. To investigate the association of MIC polymorphism with TB infection, 124 patients and 191 ethnically matched controls from Hunan province, Southern China, were genotyped for the MIC polymorphism using polymerase chain reaction-sequence specific priming and sequencing-based typing. The results showed that allele frequencies of MIC-sequence and MICA-STR were different in TB patients in comparison to normal controls (both P < 0.05). MICA-A4 and MICA*012:01 alleles were positive associated (OR = 2.42, 95% CI: 1.69-3.87; OR = 3.41, 95% CI: 2.19-5.33, respectively, both Pc < 0.05) while MICA -A5 were inversely associated (OR = 0.59, 95%CI: 0.41-0.94, Pc < 0.05) with TB. Homozygote MICA*012:01/012:01 was observed to have significant risk effects on TB (OR = 4.76, 95% CI: 1.94-11.69, Pc0000-0001-5151-1853 < 0.05). Additionally, MICB*008 allele conduct a significant risk effect for TB (OR = 3.17, 95%CI: 1.80-5.61, Pc < 0.05). All the data showed that MIC polymorphism was associated with the variable susceptibility to TB in Chinese population.
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Benarroch R, Austin JM, Ahmed F, Isaacson RL. The roles of cytosolic quality control proteins, SGTA and the BAG6 complex, in disease. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2019; 114:265-313. [PMID: 30635083 PMCID: PMC7102839 DOI: 10.1016/bs.apcsb.2018.11.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
SGTA is a co-chaperone that, in collaboration with the complex of BAG6/UBL4A/TRC35, facilitates the biogenesis and quality control of hydrophobic proteins, protecting them from the aqueous cytosolic environment. This work includes targeting tail-anchored proteins to their resident membranes, sorting of membrane and secretory proteins that mislocalize to the cytoplasm and endoplasmic reticulum-associated degradation of misfolded proteins. Since these functions are all vital for the cell's continued proteostasis, their disruption poses a threat to the cell, with a particular risk of protein aggregation, a phenomenon that underpins many diseases. Although the specific disease implications of machinery involved in quality control of hydrophobic substrates are poorly understood, here we summarize much of the available information on this topic.
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Affiliation(s)
- Rashi Benarroch
- Department of Chemistry, King's College London, London, United Kingdom
| | - Jennifer M Austin
- Department of Chemistry, King's College London, London, United Kingdom
| | - Fahmeda Ahmed
- Department of Chemistry, King's College London, London, United Kingdom
| | - Rivka L Isaacson
- Department of Chemistry, King's College London, London, United Kingdom.
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Cho HJ, Bak SY, Kim SY, Yoo R, Baek HS, Yang S, Hwang IT, Ban JE. High neutrophil : lymphocyte ratio is associated with refractory Kawasaki disease. Pediatr Int 2017; 59:669-674. [PMID: 28097746 DOI: 10.1111/ped.13240] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 01/03/2017] [Accepted: 01/12/2017] [Indexed: 11/28/2022]
Abstract
BACKGROUND The clinical significance of the neutrophil : lymphocyte ratio (NLR) has not yet been fully elucidated in Kawasaki disease (KD). The purpose of this study was to investigate the relationship between NLR and response to i.v. immunoglobulin (IVIG), and its effect on coronary abnormalities in KD. METHODS A total of 196 KD patients treated with IVIG were analyzed. Baseline NLR was evaluated immediately before IVIG therapy and the patients classified into two groups according to NLR. The clinical data, other inflammatory biomarkers, and coronary complications were also assessed. RESULTS Kawasaki disease patients with NLR ≥ 5 had a greater incidence of IVIG refractoriness than the NLR < 5 group (31.7% vs 4.3%, P < 0.001), but this was not related to the development of coronary abnormalities. The change in NLR after IVIG (i.e. ΔNLR) was significantly decreased in the coronary abnormality group (2.65 ± 1.88 vs 3.81 ± 2.55, P = 0.042). On multivariate analysis, high NLR and CRP were independent predictors of IVIG refractoriness during the acute phase of KD (P = 0.032 in NLR; P = 0.029 in CRP, respectively). CONCLUSIONS High NLR was closely associated with resistance to IVIG, but it was not related to the occurrence of coronary abnormalities in KD. Low ΔNLR after IVIG, however, was significantly associated with coronary artery abnormalities.
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Affiliation(s)
- Hong-Je Cho
- Department of Pediatrics, Hallym University Medical Center, Seoul, Korea
| | - So Young Bak
- Department of Pediatrics, Hallym University Medical Center, Seoul, Korea
| | - Su Yeong Kim
- Department of Pediatrics, Hallym University Medical Center, Seoul, Korea
| | - Rita Yoo
- Department of Pediatrics, Hallym University Medical Center, Seoul, Korea
| | - Hae-Sung Baek
- Department of Pediatrics, Hallym University Medical Center, Seoul, Korea
| | - Seung Yang
- Department of Pediatrics, Hallym University Medical Center, Seoul, Korea
| | - Il-Tae Hwang
- Department of Pediatrics, Hallym University Medical Center, Seoul, Korea
| | - Ji-Eun Ban
- Department of Pediatrics, Hallym University Medical Center, Seoul, Korea
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Allele polymorphism and haplotype diversity of MICA/B in Tujia nationality of Zhangjiajie, Hunan Province, China. Hum Immunol 2016; 77:411-7. [DOI: 10.1016/j.humimm.2016.03.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Revised: 06/14/2015] [Accepted: 03/10/2016] [Indexed: 11/23/2022]
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Genetic variants in PLCB4/PLCB1 as susceptibility loci for coronary artery aneurysm formation in Kawasaki disease in Han Chinese in Taiwan. Sci Rep 2015; 5:14762. [PMID: 26434682 PMCID: PMC4593004 DOI: 10.1038/srep14762] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 09/04/2015] [Indexed: 12/17/2022] Open
Abstract
Kawasaki disease (KD) is an acute, inflammatory, and self-limited vasculitis affecting infants and young children. Coronary artery aneurysm (CAA) formation is the major complication of KD and the leading cause of acquired cardiovascular disease among children. To identify susceptible loci that might predispose patients with KD to CAA formation, a genome-wide association screen was performed in a Taiwanese KD cohort. Patients with both KD and CAA had longer fever duration and delayed intravenous immunoglobulin treatment time. After adjusting for these factors, 100 susceptibility loci were identified. Four genes were identified from a single cluster of 35 using the Ingenuity Pathway Analysis (IPA) Knowledge Base. Silencing KCNQ5, PLCB1, PLCB4, and PLCL1 inhibited the effect of lipopolysaccharide-induced endothelial cell inflammation with varying degrees of proinflammatory cytokine expression. PLCB1 showed the most significant inhibition. Endothelial cell inflammation was also inhibited by using a phospholipase C (PLC) inhibitor. The single nucleotide polymorphism rs6140791 was identified between PLCB4 and PLCB1. Plasma PLC levels were higher in patients with KD and CC+CG rs6140791genotypes, and these genotypes were more prevalent in patients with KD who also had CAA. Our results suggest that polymorphism of the PLCB4/B1 genes might be involved in the CAA pathogenesis of KD.
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Lin L, Yang W, Chen E, Gong Z, Luo QZ, Wei XB, Yu P. MIC gene polymorphism and haplotype diversity in Li nationality of Southern China. ACTA ACUST UNITED AC 2014; 85:45-9. [DOI: 10.1111/tan.12449] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2014] [Revised: 08/08/2014] [Accepted: 09/05/2014] [Indexed: 12/15/2022]
Affiliation(s)
- L. Lin
- Department of Immunology, College of Basic Medical Sciences; Central South University; Changsha 410078 China
| | - W. Yang
- Department of Immunology, College of Basic Medical Sciences; Central South University; Changsha 410078 China
| | - E. Chen
- Department of Immunology, College of Basic Medical Sciences; Central South University; Changsha 410078 China
| | - Z. Gong
- Department of Immunology, College of Basic Medical Sciences; Central South University; Changsha 410078 China
| | - Q. Z. Luo
- Department of Immunology, College of Basic Medical Sciences; Central South University; Changsha 410078 China
| | - X. B. Wei
- Department of Immunology, College of Basic Medical Sciences; Central South University; Changsha 410078 China
| | - P. Yu
- Department of Immunology, College of Basic Medical Sciences; Central South University; Changsha 410078 China
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Binder E, Griesmaier E, Giner T, Sailer-Höck M, Brunner J. Kawasaki disease in children and adolescents: clinical data of Kawasaki patients in a western region (Tyrol) of Austria from 2003-2012. Pediatr Rheumatol Online J 2014; 12:37. [PMID: 27643389 PMCID: PMC5350606 DOI: 10.1186/1546-0096-12-37] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 08/08/2014] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Kawasaki disease (KD) is a rare vasculitis seen predominantly in children. In developing countries, it is the leading cause of childhood-acquired heart disease. Besides a case report from 1981 there have been no data published dealing with the epidemiology and clinical aspects of KD in Austria. METHODS The purpose of the present study was to investigate the clinical spectrum of KD in a geographically determined cohort of infants, children, and adolescents that were diagnosed and treated at the University Hospital of Innsbruck from 2003-2012. RESULTS Thirty-two patients were included in the study with a median age of 32.96 months (2-192). 59.4% of the patients were aged between six months and four years. The male-to-female ratio was 1:1.13. Clinical examination revealed non-purulent conjunctivitis and exanthema as the most common symptoms (84.4%). 75% showed oropharyngeal changes, 21.9% had gastrointestinal complaints such as diarrhoe, stomachache or vomiting prior to diagnosis. One third of the patients were admitted with a preliminary diagnosis, whereas 78.1% were pre-treated with antibiotics. The median fever duration at the time of presentation was estimated with 4.96 days (1-14), at time of diagnosis 6.76 days (3-15).75% were diagnosed with complete KD, and 25% with an incomplete form of the disease. There was no significant difference in the duration of fever neither between complete and incomplete KD, nor between the different age groups. Typical laboratory findings included increased C-reactive protein (CRP) (80.6%) and erythrocyte sedimentation rate (ESR) (96%),leukocytosis (48.4%) and thrombocytosis (40.6%) without any significant quantitative difference between complete and incomplete KD. Coronary complications could be observed in six patients: one with a coronary aneurysm and five with tubular dilatation of the coronary arteries. Our patient cohort represents the age distribution as described in literature and emphasizes that KD could affect persons of any age. The frequency of occurrence of the clinical symptoms differs from previous reports - in our study, we predominantly observed non-purulent conjunctivitis and exanthema. CONCLUSION KD should always be considered as a differential diagnosis in a child with fever of unknown origin, as treatment can significantly decrease the frequency of coronary complications.
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Affiliation(s)
- Elisabeth Binder
- Clinic of Pediatrics I, Department of Pediatrics, Medical University Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria.
| | - Elke Griesmaier
- grid.5361.10000000088532677Clinic of Pediatrics II, Department of Pediatrics, Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Thomas Giner
- grid.5361.10000000088532677Clinic of Pediatrics I, Department of Pediatrics, Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Michaela Sailer-Höck
- grid.5361.10000000088532677Clinic of Pediatrics I, Department of Pediatrics, Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Juergen Brunner
- grid.5361.10000000088532677Clinic of Pediatrics I, Department of Pediatrics, Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria
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Chen E, Lin L, Chen CJ, Zhang XY, Luo QZ, Yu P. MIC gene polymorphism and haplotype diversity in Zhuang nationality of Southern China. Hum Immunol 2014; 75:953-9. [PMID: 25167773 DOI: 10.1016/j.humimm.2014.08.203] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 08/18/2014] [Accepted: 08/18/2014] [Indexed: 02/06/2023]
Abstract
Zhuang ethnic minority is the largest minority group in China. Here, we report for the first time the polymorphisms of MICA and MICB in a healthy Zhuang population of 209 unrelated individuals. Using polymerase chain reaction-sequence specific priming (PCR-SSP) and sequencing-based typing (PCR-SBT), 13 MICA-sequence alleles and 5 MICA-STR alleles, as well as 11 MICB alleles were detected, among which MICA(∗)010, MICA(∗)A5 and MICB(∗)005:02 were the most frequent alleles. Linkage disequilibria was investigated and the most common two-locus haplotypes were MICB(∗)005:02-MICA(∗)010 and MICB(∗)014-MICA(∗)045. These results suggest informative genetic markers for investigating origins and evolution of MHC class I region haplotypes in Zhuang population.
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Affiliation(s)
- E Chen
- Department of Immunology, College of Basic Medical Sciences, Central South University, 110 Xiangya Road, Changsha 410078, China
| | - L Lin
- Department of Immunology, College of Basic Medical Sciences, Central South University, 110 Xiangya Road, Changsha 410078, China
| | - C J Chen
- Department of Immunology, College of Basic Medical Sciences, Central South University, 110 Xiangya Road, Changsha 410078, China
| | - X Y Zhang
- Department of Microbiology, Changzhi Medical College, Changzhi 046000, China
| | - Q Z Luo
- Department of Immunology, College of Basic Medical Sciences, Central South University, 110 Xiangya Road, Changsha 410078, China
| | - P Yu
- Department of Immunology, College of Basic Medical Sciences, Central South University, 110 Xiangya Road, Changsha 410078, China.
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Lin YJ, Chang JS, Liu X, Hung CH, Lin TH, Huang SM, Jeang KT, Chen CY, Liao CC, Lin CW, Lai CH, Tien N, Lan YC, Ho MW, Chien WK, Chen JH, Huang YC, Tsang H, Wu JY, Chen CH, Chang LC, Tsai FJ. Association between GRIN3A gene polymorphism in Kawasaki disease and coronary artery aneurysms in Taiwanese children. PLoS One 2013; 8:e81384. [PMID: 24278430 PMCID: PMC3838481 DOI: 10.1371/journal.pone.0081384] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 10/14/2013] [Indexed: 02/07/2023] Open
Abstract
Kawasaki disease (KD) is pediatric systemic vasculitis with the classic complication of coronary artery aneurysm (CAA). It is the leading cause of acquired cardiovascular diseases in children. Some severe cases present with multi-organ involvement or neurological dysfunction. To identify the role of the glutamate receptor, ionotropic, N-methyl-d-aspartate 3A (GRIN3A) in KD, we investigated genetic variations in GRIN3A in a Taiwanese cohort of 262 KD patients (76 with and 186 without CAA complications). We used univariate and multivariate regression analyses to identify the associations between clinical characteristics and GRIN3A genetic variations in KD. According to univariate regression analysis, CAA formation in KD was significantly associated with fever duration (p < 0.0001), first Intravenous immunoglobulin (IVIG) used (days after day one of fever) (p < 0.0001), and the GRIN3A (rs7849782) genetic variant (p < 0.001). KD patients with GG+GC genotype showed a lower rate of developing CAA (GG+GC genotype: odds ratio = 0.26; 95% CI = 0.14–0.46). Significant associations were identified between KD with CAA complication and the GRIN3A (rs7849782) genetic variant by using multivariate regression analysis. Specifically, significant correlations were observed between KD with CAA complications and the presence of GG+GC genotypes for the GRIN3A rs7849782 single-nucleotide polymorphism (full model: odds ratio = 0.25; 95% CI = 0.14–0.46). Our results suggest that a polymorphism of the GRIN3A gene may play a role in KD pathogenesis.
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Affiliation(s)
- Ying-Ju Lin
- Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Jeng-Sheng Chang
- Department of Pediatrics, China Medical University Hospital, Taichung, Taiwan
| | - Xiang Liu
- Molecular Virology Section, Laboratory of Molecular Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Chien-Hui Hung
- Graduate Institute of Clinical Medical Science, Chang-Gung University, Chiayi, Taiwan
| | - Ting-Hsu Lin
- Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
| | - Shao-Mei Huang
- Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
| | - Kuan-Teh Jeang
- Molecular Virology Section, Laboratory of Molecular Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Chia-Yen Chen
- Viral Biochemistry Section, Laboratory of Molecular Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Chiu-Chu Liao
- Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
| | - Cheng-Wen Lin
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, Taiwan
| | - Chih-Ho Lai
- Department of Microbiology, School of Medicine, China Medical University, Taichung, Taiwan
| | - Ni Tien
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, Taiwan
| | - Yu-Ching Lan
- Department of Health Risk Management, China Medical University, Taichung, Taiwan
| | - Mao-Wang Ho
- Section of Infectious Diseases, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Wen-Kuei Chien
- Biostatistics Center, China Medical University, Taichung, Taiwan
- Biostatistics Center, Taipei Medical University, Taichung, Taiwan
| | - Jin-Hua Chen
- Biostatistics Center, China Medical University, Taichung, Taiwan
- Biostatistics Center, Taipei Medical University, Taichung, Taiwan
| | - Yu-Chuen Huang
- Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Hsinyi Tsang
- The Laboratory of Molecular Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Jer-Yuarn Wu
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Chien-Hsiun Chen
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Li-Ching Chang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Fuu-Jen Tsai
- Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
- Department of Pediatrics, China Medical University Hospital, Taichung, Taiwan
- Asia University, Taichung, Taiwan
- * E-mail:
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Clark N, Wu X, Her C. MutS Homologues hMSH4 and hMSH5: Genetic Variations, Functions, and Implications in Human Diseases. Curr Genomics 2013; 14:81-90. [PMID: 24082819 PMCID: PMC3637681 DOI: 10.2174/1389202911314020002] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Revised: 01/19/2013] [Accepted: 01/21/2013] [Indexed: 12/01/2022] Open
Abstract
The prominence of the human mismatch repair (MMR) pathway is clearly reflected by the causal link between MMR gene mutations and the occurrence of Lynch syndrome (or HNPCC). The MMR family of proteins also carries out a plethora of diverse cellular functions beyond its primary role in MMR and homologous recombination. In fact, members of the MMR family of proteins are being increasingly recognized as critical mediators between DNA damage repair and cell survival. Thus, a better functional understanding of MMR proteins will undoubtedly aid the development of strategies to effectively enhance apoptotic signaling in response to DNA damage induced by anti-cancer therapeutics. Among the five known human MutS homologs, hMSH4 and hMSH5 form a unique heterocomplex. However, the expression profiles of the two genes are not correlated in a number of cell types, suggesting that they may function independently as well. Consistent with this, these two proteins are promiscuous and thought to play distinct roles through interacting with different binding partners. Here, we describe the gene and protein structures of eukaryotic MSH4 and MSH5 with a particular emphasis on their human homologues, and we discuss recent findings of the roles of these two genes in DNA damage response and repair. Finally, we delineate the potential links of single nucleotide polymorphism (SNP) loci of these two genes with several human diseases.
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Affiliation(s)
- Nicole Clark
- STARS Program, College of Veterinary Medicine, Washington State University, Pullman, WA 99164-7520, USA ; School of Molecular Biosciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99164-7520, USA
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Understanding the pathogenesis of Kawasaki disease by network and pathway analysis. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2013; 2013:989307. [PMID: 23533546 PMCID: PMC3606754 DOI: 10.1155/2013/989307] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Accepted: 01/04/2013] [Indexed: 12/20/2022]
Abstract
Kawasaki disease (KD) is a complex disease, leading to the damage of multisystems. The pathogen that triggers this sophisticated disease is still unknown since it was first reported in 1967. To increase our knowledge on the effects of genes in KD, we extracted statistically significant genes so far associated with this mysterious illness from candidate gene studies and genome-wide association studies. These genes contributed to susceptibility to KD, coronary artery lesions, resistance to initial IVIG treatment, incomplete KD, and so on. Gene ontology category and pathways were analyzed for relationships among these statistically significant genes. These genes were represented in a variety of functional categories, including immune response, inflammatory response, and cellular calcium ion homeostasis. They were mainly enriched in the pathway of immune response. We further highlighted the compelling immune pathway of NF-AT signal and leukocyte interactions combined with another transcription factor NF- κ B in the pathogenesis of KD. STRING analysis, a network analysis focusing on protein interactions, validated close contact between these genes and implied the importance of this pathway. This data will contribute to understanding pathogenesis of KD.
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